package com.syt.mall.auth.controller;


import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.TypeReference;
import com.syt.common.constant.AuthServerConstant;
import com.syt.common.utils.HttpUtils;
import com.syt.common.utils.R;
import com.syt.mall.auth.feign.MemberFeignServer;
import com.syt.common.vo.MemberResoVo;
import com.syt.mall.auth.vo.SocialUser;
import lombok.extern.slf4j.Slf4j;
import org.apache.http.HttpResponse;
import org.apache.http.util.EntityUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;

import javax.servlet.http.HttpSession;
import java.util.HashMap;
import java.util.Map;

/**
 * 处理社交登录请求
 */
@Slf4j
@Controller
public class OAuth2Controller {
    @Autowired
    private MemberFeignServer memberFeignServer;

    /**
     * 社交登录成功回调
     * @param code
     * @return
     * @throws Exception
     */
    @GetMapping("/oauth2.0/weibo/success")
    public String weibo(@RequestParam("code") String code, HttpSession session) throws Exception {
        //1.根据code获取accessToken
        Map<String,String> map = new HashMap<>();
        map.put("client_id", "3845178358");
        map.put("client_secret", "f47495fae3fc20b0efaedca03130fe55");
        map.put("grant_type", "authorization_code");
        map.put("redirect_uri", "http://auth.mall.com/oauth2.0/weibo/success");
        map.put("code", code);
        Map<String, String> headers = new HashMap<>();
        HttpResponse response = HttpUtils.doPost("https://api.weibo.com", "/oauth2/access_token", "post", headers, null, map);

        if (response.getStatusLine().getStatusCode()==200) {
            //获取到accessToken
            String json = EntityUtils.toString(response.getEntity());
            SocialUser socialUser = JSON.parseObject(json, SocialUser.class);

            //知道当前是哪个社交用户
            //1.) 当前用户如果是第一次进网站,自动注册进来(为当前社交用户生成一个会员信息账号,以后这个社交账号就对应指定的会员)
            //登录或者注册这个社交用户
            R oauthlogin = memberFeignServer.oauthlogin(socialUser);
            if (oauthlogin.getCode()==0) {
                MemberResoVo data = oauthlogin.getData("data", new TypeReference<MemberResoVo>() {});
                log.info("登录成功:用户信息{}",data.toString());
                //1.第一次使用session;命令浏览器保存卡号,JSESSIONID这个cookie,以后浏览器访问哪个网站就会带上这个网站的cookie
                //子域之间  auth.mall.com, order.mall.com,发卡的时候(指定域名的时候为父域名),即使是子域系统发的卡,,也能让父域直接使用
                //2.登录成功就跳回首页
                session.setAttribute(AuthServerConstant.LOGIN_USER,data);
                return "redirect:http://mall.com";
            }else {
                return "redirect:http://auth.mall.com/login.html";
            }

        }else {
            return "redirect:http://auth.mall.com/login.html";
        }

    }
}
